#head {
    position: absolute;
    width: 100%;
    height: 70px;
    background: green;
}

#nav {
    width: 240px;
    float: left;
    padding-top: 70px;
    height: 100%;
    background: pink;
    display: inline-block;
}

#content {
    position: fixed;
    width: 100%;
    height: 100%;
    margin-top: 70px;
    display: inline-block;
}

h2{
    margin-top: 20px;
}

.title {
    margin-left: 50px;
}
ul {
    list-style: none;
    margin-left: 30px;
}